<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body style="width: 100%">
<!--左侧菜单-->
<iframe name="menu" style="width: 30%;height: 400px"  frameborder="0" src="100du.html"></iframe>
<!--右侧主体内容-->
<iframe name="context" style="width: 65%;height: 400px" frameborder="0" ></iframe>
</body>
</html>